<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html>
<head>
<title>Tab Pane (WebFX)</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<script type="text/javascript" src="local/webfxlayout.js"></script>
<script type="text/javascript" src="local/webfxapi.js"></script>
<script type="text/javascript" src="js/tabpane.js"></script>
<link type="text/css" rel="StyleSheet" href="css/tab.webfx.css" />

<style type="text/css">

.dynamic-tab-pane-control .tab-page {
	height:		500px;
	width:		558px;
	overflow:	auto;
}

.dynamic-tab-pane-control .tab-page .dynamic-tab-pane-control .tab-page {
	height:		100px;
}

form {
	margin:		0;
	padding:	0;
}

/* over ride styles from webfxlayout */

.dynamic-tab-pane-control.tab-pane {
	margin:	10px;
	width:	580px;
}

.dynamic-tab-pane-control h2 {
	text-align:	center;
	width:		auto;
}

.dynamic-tab-pane-control h2 a {
	display:	inline;
	width:		auto;
}

.dynamic-tab-pane-control a:hover {
	background: transparent;
}

.dynamic-tab-pane-control .tab-page h2 {
	text-align:	left;
}

</style>

<script type="text/javascript">
//<![CDATA[

var tabPane;

function showArticleTab( sName ) {
	if (typeof tabPane != "undefined" ) {

		switch ( sName ) {

			case "main":
				tabPane.setSelectedIndex( 0 );
				break;

			case "usage":
				tabPane.setSelectedIndex( 1 );
				break;

			case "api":
				tabPane.setSelectedIndex( 2 );
				break;

			case "implementation":
				tabPane.setSelectedIndex( 3 );
				break;

			case "looknfeel":
				tabPane.setSelectedIndex( 4 );
				break;
		}
	}
}

// help tips
htDom = "Document Object Model 1 is a standard developed by the W3C.<br />" +
		"<a href=\"http://www.w3.org/DOM/\" target=\"_blank\">http://www.w3.org/DOM/</a>";

//]]>
</script>

</head>
<body>
<!-- WebFX Layout Include -->
<script type="text/javascript">

var articleMenu= new WebFXMenu;
articleMenu.left  = 384;
articleMenu.top   = 86;
articleMenu.width = 140;
articleMenu.add(new WebFXMenuItem("Tab Pane", "javascript:showArticleTab( \"main\" )"));
articleMenu.add(new WebFXMenuItem("Usage", "javascript:showArticleTab( \"usage\" )"));
articleMenu.add(new WebFXMenuItem("API", "javascript:showArticleTab( \"api\" )"));
articleMenu.add(new WebFXMenuItem("Implementation", "javascript:showArticleTab( \"implementation\" )"));
articleMenu.add(new WebFXMenuItem("Look &amp; Feel", "javascript:showArticleTab( \"looknfeel\" )"));
articleMenu.add(new WebFXMenuItem("Demo", "demo.html"));
articleMenu.add(new WebFXMenuSeparator);
articleMenu.add(new WebFXMenuItem("Download", "http://webfx.eae.net/download/tabpane102.zip"));
webfxMenuBar.add(new WebFXMenuButton("Article Menu", null, null, articleMenu));

webfxLayout.writeTitle("Tab Pane");
webfxLayout.writeMenu();
webfxLayout.writeDesignedByEdger();

</script>
<div class="webfx-main-body">
<!-- end WebFX Layout Includes -->

<p>
	<span class="date">2002-02-17</span>: Original version posted.<br />
	<span class="date">2003-03-03</span>: 1.02 - Fixes IE memory leakage.<br/>
	<span class="date">2006-05-26</span>: Changed license to Apache Software License 2.0.<br />
</p>

<!-- begin tab pane -->
<div class="tab-pane" id="article-tab">

<script type="text/javascript">
tabPane = new WebFXTabPane( document.getElementById( "article-tab" ), true );
</script>



<!-- begin intro page -->
<div class="tab-page" id="intro-page">
<h2 class="tab">Introduction</h2>

<script type="text/javascript">
tabPane.addTabPage( document.getElementById( "intro-page" ) );
</script>

<p>You might remember that we used to have a pretty good tab strip control
here at WebFX a long time ago. This control was removed when we redesigned
the site with the argument that we should fix it to work in Mozilla. Now,
more than three years later we finally got down and created a tab pane
control that we think is a worthy replacement.</p>

<p>This Tab Pane control is fairly similar to the tab system Tim Scarfe
created for <a href="http://www.developer-x.com">developer-x.com</a> and
the basic idea is the same. That idea is to be able to use a normal XHTML
document structure and if the browser supports
<a class="helpLink" href="?" onclick="showHelpTip(event, htDom); return false">DOM level 1</a>
then the structure of the elements is slightly adjusted and a the
<code>className</code> is changed for the tab pane container so that the
css rules specially defined for the tab are applied.</p>

<p>The Tab Pane has support for persistence using cookies so that you can
navigate between pages without having to reselect the selected tab for
all your tab panes in your document. The look and feel is entirely
decided by CSS so it is fairly easy to create the look and feel you need
for your web application. As of this writing there are three different
styles available; Luna, Windows Classic and the WebFX look and feel that
this pane is currently using. See the <a href="demo.html">demo</a> page
for the look and feel of the other two.</p>

</div>
<!-- end intro page -->




<!-- begin usage page -->
<div class="tab-page" id="usage-page">
<h2 class="tab">Usage</h2>

<script type="text/javascript">
tabPane.addTabPage( document.getElementById( "usage-page" ) );
</script>

<h3>Include the Files</h3>

<p>To use the tab pane you should include two files. One JavaScript file
and on css file.</p>

<pre>
&lt;script type="text/javascript" src="<a href="js/tabpane.js">js/tabpane.js</a>"&gt;&lt;/script&gt;
&lt;link type="text/css" rel="StyleSheet" href="<a href="css/tab.webfx.css">css/tab.webfx.css</a>" /&gt;
</pre>

<h3>The XHTML Structure</h3>

<p>The basic structure for the tab pane consists of an element with the class name
<code>tab-pane</code> that in turn contains elements with the class names
<code>tab-page</code>. The tab page element should contain <strong>one</strong>
element with the class name <code>tab</code>. This last one should preferably be
a header of some kind in case the browser does not support DOM1 and therefore will
leave the structure intact. The other two elements can be almost anything but a
<code>div</code> element is good because it usually does not change the rendering.</p>

<p>Below is the code for a simple tab pane with the tab pages.</p>

<pre>
&lt;div class="tab-pane" id="tab-pane-1"&gt;

   &lt;div class="tab-page"&gt;
      &lt;h2 class="tab"&gt;General&lt;/h2&gt;

      This is text of tab 1. This is text of tab 1.
      This is text of tab 1. This is text of tab 1.

   &lt;/div&gt;

   &lt;div class="tab-page"&gt;
      &lt;h2 class="tab"&gt;Privacy&lt;/h2&gt;

      This is text of tab 2. This is text of tab 2.
      This is text of tab 2. This is text of tab 2.

   &lt;/div&gt;
&lt;/div&gt;
</pre>

<p>Notice that the <code>id</code> is not needed unless two or more tab panes
are present in the same document and you are using the persistence feature.
</p>

<h3>Initialization</h3>

<p>The code above is a complete working tab pane. You do not have to add any more
js code but there are a few good reasons why you would want to do this. If no
js code is added all the tab panes in the document are initialized when the
document is loaded. If you have lots of text and/or images this will take quite
some time and the layout of the page will feel <em>jerky</em>. A better way is
to call the function <code>setupAllTabs</code> after all your XHTML has been defined.
This works much better but if you have a lot of text this is not optional
either because the browser might render some of the text before the entire tab
structure is available.</p>

<pre>
      ...
   &lt;/div&gt;
&lt;/div&gt;
&lt;!-- tab pane closed --&gt;

&lt;script type="text/javascript"&gt;
setupAllTabs();
&lt;/script&gt;
</pre>

<p>The best way to go is to create as much as possible as soon as possible.
This involves adding calls to js after the tab pane is opened and as soon
as every page is opened.</p>

<pre>
&lt;div class="tab-pane" id="tab-pane-1"&gt;

&lt;script type="text/javascript"&gt;
var tabPane1 = new WebFXTabPane( document.getElementById( "tab-pane-1" ) );
&lt;/script&gt;

   &lt;div class="tab-page" id="tab-page-1"&gt;
      &lt;h2 class="tab"&gt;General&lt;/h2&gt;

      &lt;script type="text/javascript"&gt;
      tabPane1.addTabPage( document.getElementById( "tab-page-1" ) );
      &lt;/script&gt;

      This is text of tab 1. This is text of tab 1.
      This is text of tab 1. This is text of tab 1.

   &lt;/div&gt;

   &lt;div class="tab-page" id="tab-page-2"&gt;
      &lt;h2 class="tab"&gt;Privacy&lt;/h2&gt;

      &lt;script type="text/javascript"&gt;
      tabPane1.addTabPage( document.getElementById( "tab-page-2" ) );
      &lt;/script&gt;

      This is text of tab 2. This is text of tab 2.
      This is text of tab 2. This is text of tab 2.

   &lt;/div&gt;
&lt;/div&gt;
</pre>

<p>The code for this is, as you can see, not half as nice and you should
decide from time to time if you really need this. In most web applications
(especially intranet apps) this is not needed because the amount of data inside
each tab page is limited (or added later).</p>

<p>One thing to note about this last method is that some browser have trouble
changing the content model during the page load (noticeably Konqueror).</p>

</div>
<!-- end usage tab -->





<!-- begin api tab -->
<div class="tab-page" id="api-page">
<h2 class="tab">API</h2>

<script type="text/javascript">
tabPane.addTabPage( document.getElementById( "api-page" ) );
</script>

<!--
Generated using api.xsl version 20020217
-->

<!-- Start main output -->
<h2>WebFXTabPane</h2>
<p>
		This is the class representing a tab pane.
	</p>
<h3>Syntax</h3>
<p><code>

	new WebFXTabPane(<span class="methodArgument">oElement</span>&nbsp;[, <span class="methodArgument">bUseCookie</span>])</code></p>
<h3>Parameters</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>oElement</code></td>
<td><code>HTMLElement</code></td>
<td>The html element that represents the tab pane</td>
</tr>
<tr>
<td><code>bUseCookie</code></td>
<td><code>Boolean</code></td>
<td>
<span class="optional">Optional.</span>
				If this is set to true then the selected tab is persisted.
			<span class="defaultSentence">
					The default value is <code>true</code>.
				</span>
</td>
</tr>
</tbody>
</table>
<h3>Static Methods</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Description</td>
</tr>
</thead>
<tbody>
		<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">setCookie</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.setCookie(<span class="methodArgument">sName</span>, <span class="methodArgument">sValue</span>&nbsp;[, <span class="methodArgument">nDays</span>])</code></p>
<h4>Arguments</h4>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>sName</code></td>
<td><code>String</code></td>
<td>The name of the cookie</td>
</tr>
<tr>
<td><code>sValue</code></td>
<td><code>String</code></td>
<td>The value of the cookie</td>
</tr>
<tr>
<td><code>nDays</code></td>
<td><code>Number</code></td>
<td>
<span class="optional">Optional.</span>
						The number of days to store the cookie
					</td>
</tr>
</tbody>
</table>
<h4>Return Type</h4>
<p><code>void</code></p>
</div></div>
</td>
<td>Sets a cookie</td>
</tr>
		<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">getCookie</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.getCookie(<span class="methodArgument">sName</span>)</code></p>
<h4>Arguments</h4>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>sName</code></td>
<td><code>String</code></td>
<td>The name of the cookie</td>
</tr>
</tbody>
</table>
<h4>Return Type</h4>
<p><code>String</code></p>
</div></div>
</td>
<td>Retrieves a cookie by name</td>
</tr>
		<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">removeCookie</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.removeCookie(<span class="methodArgument">sName</span>)</code></p>
<h4>Arguments</h4>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>sName</code></td>
<td><code>String</code></td>
<td>The name of the cookie to remove</td>
</tr>
</tbody>
</table>
<h4>Return Type</h4>
<p><code>void</code></p>
</div></div>
</td>
<td>Removes a cookie by name</td>
</tr>
	</tbody>
</table>
<h3>Static Fields</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td colspan="3">None.</td>
</tr>
</tbody>
</table>
<h3>Methods</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Description</td>
</tr>
</thead>
<tbody>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">addTabPage</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.addTabPage(<span class="methodArgument">oElement</span>)</code></p>
<h4>Arguments</h4>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>oElement</code></td>
<td><code>HTMLElement</code></td>
<td>The html element that represents the tab page</td>
</tr>
</tbody>
</table>
<h4>Return Type</h4>
<p><code>WebFXTabPage</code></p>
</div></div>
</td>
<td>Adds a tab page by passing an html element</td>
</tr>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">getSelectedIndex</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.getSelectedIndex()</code></p>
<h4>Arguments</h4>
<p>No Arguments.</p>
<h4>Return Type</h4>
<p><code>Number</code></p>
</div></div>
</td>
<td>The index of the selected tab page</td>
</tr>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">setSelectedIndex</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.setSelectedIndex(<span class="methodArgument">n</span>)</code></p>
<h4>Arguments</h4>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>n</code></td>
<td><code>Number</code></td>
<td>The index of the tab page to select</td>
</tr>
</tbody>
</table>
<h4>Return Type</h4>
<p><code>void</code></p>
</div></div>
</td>
<td>Sets the selected tab page by index</td>
</tr>
</tbody>
</table>
<h3>Fields</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>classNameTag</code></td>
<td><code>String</code></td>
<td>This string is added to the class name to tag the tab pane as beeing created</td>
</tr>
<tr>
<td><code>element</code></td>
<td><code>HTMLElement</code></td>
<td>
<span class="readOnly">Read only.</span>The html element being that represents the tab pane</td>
</tr>
<tr>
<td><code>pages</code></td>
<td><code>WebFXTabPages[]</code></td>
<td>
<span class="readOnly">Read only.</span>An array containing the tab pages</td>
</tr>
<tr>
<td><code>selectedIndex</code></td>
<td><code>Number</code></td>
<td>
<span class="readOnly">Read only.</span>The index of the selected tab page</td>
</tr>
<tr>
<td><code>tabRow</code></td>
<td><code>HTMLElement</code></td>
<td>
<span class="readOnly">Read only.</span>The html element that encloses all tabs</td>
</tr>
<tr>
<td><code>useCookie</code></td>
<td><code>Boolean</code></td>
<td>Is used to decide if the selected tab page index should be persisted using a cookie.</td>
</tr>
</tbody>
</table>
<h3>Remarks</h3>
<p>
			None.
		</p>
<h2>WebFXTabPage</h2>
<p>
		This is the class representing a tab page.
	</p>
<h3>Syntax</h3>
<p><code>

	new WebFXTabPage(<span class="methodArgument">oElement</span>, <span class="methodArgument">oTabPane</span>, <span class="methodArgument">nIndex</span>)</code></p>
<h3>Parameters</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>oElement</code></td>
<td><code>HTMLElement</code></td>
<td>The html element that represents the tab page</td>
</tr>
<tr>
<td><code>oTabPane</code></td>
<td><code>WebFXTabPane</code></td>
<td>The tab pane to add the page to</td>
</tr>
<tr>
<td><code>nIndex</code></td>
<td><code>Number</code></td>
<td>The index of the tab page</td>
</tr>
</tbody>
</table>
<h3>Static Methods</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Description</td>
</tr>
</thead>
<tbody>
<tr>
<td colspan="2">None.</td>
</tr>
</tbody>
</table>
<h3>Static Fields</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td colspan="3">None.</td>
</tr>
</tbody>
</table>
<h3>Methods</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Description</td>
</tr>
</thead>
<tbody>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">hide</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.hide()</code></p>
<h4>Arguments</h4>
<p>No Arguments.</p>
<h4>Return Type</h4>
<p><code>void</code></p>
</div></div>
</td>
<td>Hides the tab page</td>
</tr>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">select</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.select()</code></p>
<h4>Arguments</h4>
<p>No Arguments.</p>
<h4>Return Type</h4>
<p><code>void</code></p>
</div></div>
</td>
<td>Selects the tab page</td>
</tr>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">show</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code><span class="object">object</span>.show()</code></p>
<h4>Arguments</h4>
<p>No Arguments.</p>
<h4>Return Type</h4>
<p><code>void</code></p>
</div></div>
</td>
<td>Makes the tab page visible</td>
</tr>
</tbody>
</table>
<h3>Fields</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td><code>element</code></td>
<td><code>HTMLElement</code></td>
<td>
<span class="readOnly">Read only.</span>The html element being used as the page</td>
</tr>
<tr>
<td><code>index</code></td>
<td><code>Number</code></td>
<td>
<span class="readOnly">Read only.</span>
				The index of the tab page in the tab pane pages array.
			</td>
</tr>
<tr>
<td><code>tab</code></td>
<td><code>HTMLElement</code></td>
<td>
<span class="readOnly">Read only.</span>The html element being used as the tab.</td>
</tr>
</tbody>
</table>
<h3>Remarks</h3>
<p>
		Do not use this constructor manually. Use addTabPage of the WebFXTabPane
		class instead.
	</p>
<h2>Globals</h2>
<h3>Functions</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Description</td>
</tr>
</thead>
<tbody>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">hasSupport</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code>hasSupport()</code></p>
<h4>Arguments</h4>
<p>No Arguments.</p>
<h4>Return Type</h4>
<p><code>Boolean</code></p>
</div></div>
</td>
<td>Returns whether the browser is supported or not</td>
</tr>
<tr>
<td>
<a class="helpLink" href="javascript://" onclick="toggleMethodArguments( event, this ); return false;">setupAllTabs</a><div class="methodContainer">
<div class="methodInfo">
<h4>Syntax</h4>
<p><code>setupAllTabs()</code></p>
<h4>Arguments</h4>
<p>No Arguments.</p>
<h4>Return Type</h4>
<p><code>void</code></p>
</div></div>
</td>
<td>
				Initializes all tab panes and tab pages that have not been initialized already.
			</td>
</tr>
</tbody>
</table>
<h3>Objects</h3>
<table>
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Descripton</td>
</tr>
</thead>
<tbody>
<tr>
<td colspan="3">None.</td>
</tr>
</tbody>
</table>
<!-- end main output -->



</div>
<!-- end api tab -->








<!-- begin implementation tab -->
<div class="tab-page" id="implementation-page">
<h2 class="tab">Implementation</h2>

<script type="text/javascript">
tabPane.addTabPage( document.getElementById( "implementation-page" ) );
</script>

<h3>Check for support</h3>

<p>The way to check the browser whether it support a certain feature in the
DOM is to use the method <code>document.implementation.hasFeature</code>.
However since IE5.5 supports all the features that this script needs but it
does not support this way of checking for support we have to add a separate
check for IE55.</p>

<pre>
function hasSupport() {

   if (typeof hasSupport.support != "undefined")
      return hasSupport.support;

   var ie55 = /msie 5\.[56789]/i.test( navigator.userAgent );

   hasSupport.support = ( typeof document.implementation != "undefined" &amp;&amp;
         document.implementation.hasFeature( "html", "1.0" ) || ie55 )

   // IE55 has a serious DOM1 bug... Patch it!
   if ( ie55 ) {
      document._getElementsByTagName = document.getElementsByTagName;
      document.getElementsByTagName = function ( sTagName ) {
         if ( sTagName == "*" )
            return document.all;
         else
            return document._getElementsByTagName( sTagName );
      };
   }

   return hasSupport.support;
}
</pre>

<p>As you can see in the code above IE55 has a bug an therefore we also
patch that. Too many people are still using IE55 to just ignore it.</p>

<h3>WebFXTabPane</h3>

<p>The constructor for the tab pane creates the <code>tabRow</code> div
that is used to place all the actual tabs in. It also checks the cookie
state so that the selected tab can be persisted. Besides from this it
sets up some properties needed to keep track of the states. Last but not
least it checks the <code>childNodes</code> of the element and adds
the found tab pages.</p>

<pre>
function WebFXTabPane( el, bUseCookie ) {
   if ( !hasSupport() || el == null ) return;

   this.element = el;
   this.element.tabPane = this;
   this.pages = [];
   this.selectedIndex = null;
   this.useCookie = bUseCookie != null ? bUseCookie : true;

   // add class name tag to class name
   this.element.className = this.classNameTag + " " + this.element.className;

   // add tab row
   this.tabRow = document.createElement( "div" );
   this.tabRow.className = "tab-row";
   el.insertBefore( this.tabRow, el.firstChild );

   var tabIndex = 0;
   if ( this.useCookie ) {
      tabIndex = Number( WebFXTabPane.getCookie( "webfxtab_" + this.element.id ) );
      if ( isNaN( tabIndex ) )
         tabIndex = 0;
   }
   this.selectedIndex = tabIndex;

   // loop through child nodes and add them
   var cs = el.childNodes;
   var n;
   for (var i = 0; i &lt; cs.length; i++) {
      if (cs[i].nodeType == 1 &amp;&amp; cs[i].className == "tab-page") {
         this.addTabPage( cs[i] );
      }
   }
}
</pre>

<p>There are a few methods added to the <code>WebFXTabPane</code> class and one of the
more important ones is the method <code>addTabPage</code>. This method takes the element
that represents the tab page and uses that to create a <code>WebFXTabPage</code>
object that is added to the <code>pages</code> array. Once the tab page has been
added it also checks if this page is the selected one and if it is it shows it.</p>

<pre>
WebFXTabPane.prototype = {

   ...

   addTabPage:   function ( oElement ) {
      if ( !hasSupport() ) return;

      if ( oElement.tabPage == this )   // already added
         return oElement.tabPage;

      var n = this.pages.length;
      var tp = this.pages[n] = new WebFXTabPage( oElement, this, n );
      tp.tabPane = this;

      // move the tab out of the box
      this.tabRow.appendChild( tp.tab );

      if ( n == this.selectedIndex )
         tp.show();
      else
         tp.hide();

      return tp;
   }
};
</pre>

<h3>WebFXTabPage</h3>

<p>This class is used to keep track of the actual tab page. Once created it moves
the tab element to the <code>tabRow</code> of the tab pane. It also adds
an anchor around the text so that the user can use the keyboard to activate the
tabs.</p>

<pre>
function WebFXTabPage( el, tabPane, nIndex ) {
   if ( !hasSupport() || el == null ) return;

   this.element = el;
   this.element.tabPage = this;
   this.index = nIndex;

   var cs = el.childNodes;
   for (var i = 0; i &lt; cs.length; i++) {
      if (cs[i].nodeType == 1 &amp;&amp; cs[i].className == "tab") {
         this.tab = cs[i];
         break;
      }
   }

   // insert a tag around content to support keyboard navigation
   var a = document.createElement( "A" );
   a.href = "javascript:void 0;";
   while ( this.tab.hasChildNodes() )
      a.appendChild( this.tab.firstChild );
   this.tab.appendChild( a );

   // hook up events, using DOM0
   var oThis = this;
   this.tab.onclick = function () { oThis.select(); };
   this.tab.onmouseover = function () { WebFXTabPage.tabOver( oThis ); };
   this.tab.onmouseout = function () { WebFXTabPage.tabOut( oThis ); };
}
</pre>

<h3>Initialization</h3>

<p>The initialization uses the global function <code>setupAllTabs</code> that
goes through all elements and checks their class names and if the class names
match the classes used by the tab pane controls it checks whether this element
belongs to an uninitialized control and in that case it initializes it now.</p>

<pre>
function setupAllTabs() {
   if ( !hasSupport() ) return;

   var all = document.getElementsByTagName( "*" );
   var l = all.length;
   var tabPaneRe = /tab\-pane/;
   var tabPageRe = /tab\-page/;
   var cn, el;
   var parentTabPane;

   for ( var i = 0; i &lt; l; i++ ) {
      el = all[i]
      cn = el.className;

      // no className
      if ( cn == "" ) continue;

      // uninitiated tab pane
      if ( tabPaneRe.test( cn ) &amp;&amp; !el.tabPane )
         new WebFXTabPane( el );

      // unitiated tab page wit a valid tab pane parent
      else if ( tabPageRe.test( cn ) &amp;&amp; !el.tabPage &amp;&amp;
               tabPaneRe.test( el.parentNode.className ) ) {
         el.parentNode.tabPane.addTabPage( el );
      }
   }
}
</pre>

<p>This function can be called manually at any time but the script makes hooks
to the <code>load</code> event for the window. This is done using DOM level 2
events if available. If not we test if it supports the IE5 way of attaching events
and last we fall back on classic way of setting events.</p>

<pre>
// DOM2
if ( typeof window.addEventListener != "undefined" )
   window.addEventListener( "load", setupAllTabs, false );

// IE
else if ( typeof window.attachEvent != "undefined" )
   window.attachEvent( "onload", setupAllTabs );

else {
   if ( window.onload != null ) {
      var oldOnload = window.onload;
      window.onload = function ( e ) {
         oldOnload( e );
         setupAllTabs();
      };
   }
   else
      window.onload = setupAllTabs;
}
</pre>

</div>
<!-- end implementation tab -->




<!-- begin look and feel tab -->
<div class="tab-page" id="look-page">
<h2 class="tab">Look &amp; Feel</h2>

<script type="text/javascript">
tabPane.addTabPage( document.getElementById( "look-page" ) );
</script>


<h3>The structure</h3>

<p>To be able to change the look and feel one needs to understand the structure
of the tab pane. When the original XHTML source tree is transformed into the
tab pane the class name of the element representing the tab pane is tagged with
the property <code>classNameTag</code>. The default tag is
<code>dynamic-tab-pane-control</code> and therefore all your css rules should
take this into account. If you want different look on different tab panes in
the same document this tag can be changed to make the css rules easier to set
up.</p>

<pre>
&lt;div class="dynamic-tab-pane-control tab-pane" id="tab-pane-1"&gt;
   &lt;div class="tab-row"&gt;
      &lt;h2 class="tab selected"&gt;&lt;a ... &gt;General&lt;/a&gt;&lt;/h2&gt;
      &lt;h2 class="tab hover"&gt;&lt;a ... &gt;Privacy&lt;/a&gt;&lt;/h2&gt;
   &lt;/div&gt;
   &lt;div class="tab-page"&gt;

      This is text of tab 1. This is text of tab 1.
      This is text of tab 1. This is text of tab 1.

   &lt;/div&gt;

   &lt;div class="tab-page"&gt;

      This is text of tab 2. This is text of tab 2.
      This is text of tab 2. This is text of tab 2.

   &lt;/div&gt;
&lt;/div&gt;
</pre>

<p>The selected tab will have the class name <code>tab selected</code> and the
tab that the mouse hovers over will have the class name <code>tab hover</code>. If the selected
tab is hovered it will have the class name <code>tab selected hover</code>. These
rules allow you to differentiate the look of tabs between the different
states.</p>

<h3>The CSS Rules</h3>

<p>Here we will walk through the <a href="css/tab.winclassic.css">Windows Classic
css file</a>. First we set the width and position of the tab pane to prevent a few
rendering bugs in IE6.</p>

<pre>
.dynamic-tab-pane-control.tab-pane {
   position:        relative;
   width:           100%;
}

.dynamic-tab-pane-control .tab-row {
   z-index:         1;
   white-space:     nowrap;
}
</pre>

<p>Then we setup the css for the tab. Notice how the position is set to
relative to allow the top position to be slightly changed and to allow the
z-index property to be changed to position the tabs below the tab pages.</p>

<pre>
.dynamic-tab-pane-control .tab-row .tab {
   font:            Menu;
   cursor:          Default;
   display:         inline;
   margin:          1px -2px 1px 2px;
   float:           left;
   padding:         2px 5px 3px 5px;
   background:      ThreeDFace;
   border:          1px solid;
   border-color:    ThreeDHighlight ThreeDDarkShadow
                    ThreeDDarkShadow ThreeDHighlight;
   border-bottom:   0;
   z-index:         1;
   position:        relative;
   top:             0;
}
</pre>

<p>For the selected tab we set the z-index to 3 to put it above the
tab pages. We also move it a little and change some other properties to make it look
more like the classic window tab control.</p>

<pre>
.dynamic-tab-pane-control .tab-row .tab.selected {
   border-bottom:   0;
   z-index:         3;
   padding:         2px 6px 5px 7px;
   margin:          1px -3px -2px 0px;
   top:             -2px;
}
</pre>

<p>Then we override the text properties on the tabs as well
as for the <code>.hover</code> rule.</p>

<pre>
.dynamic-tab-pane-control .tab-row .tab a {
   font:            Menu;
   color:           WindowText;
   text-decoration: none;
   cursor:          default;
}

.dynamic-tab-pane-control .tab-row .hover a {
   color:           blue;
}
</pre>

<p>Then we set the z-index for the tab pages to 2 so that it will be
shown above tabs but below the selected tab. We also set the borders and
and a few other properties.</p>

<pre>
.dynamic-tab-pane-control .tab-page {
   clear:           both;
   border:          1px solid;
   border-color:    ThreeDHighlight ThreeDDarkShadow
                    ThreeDDarkShadow ThreeDHighlight;
   background:      ThreeDFace;
   z-index:         2;
   position:        relative;
   top:             -2px;
   color:           WindowText;
   font:            MessageBox;
   font:            Message-Box;
   padding:         10px;
}
</pre>


</div>
<!-- end look and feel tab -->


</div>
<!-- end tab pane -->


<p>
<a href="javascript:showArticleTab( 'main' )">Tab Pane</a><br />
<a href="javascript:showArticleTab( 'usage' )">Usage</a><br />
<a href="javascript:showArticleTab( 'api' )">API</a><br />
<a href="javascript:showArticleTab( 'implementation' )">Implementation</a><br />
<a href="javascript:showArticleTab( 'looknfeel' )">Look &amp; Feel</a><br />
<a href="demo.html">Demo</a><br />
<a href="http://webfx.eae.net/download/tabpane102.zip">Download</a>
</p>

<p class="author">Author: Erik Arvidsson</p>

<!-- end webfx-main-body -->
</div>

</body>
</html>
